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fork - parent child program [los]
原标题:fork - parent child program [closed]
  • 时间:2012-05-02 03:48:50
  •  标签:
  • c
  • fork
#include "stdafx.h"
#include<sys/types.h>
#include<stdio.h
#include<unistd.h>
int value=5;
int _tmain(int argc, _TCHAR* argv[]){
pid_t pid;
pid=fork();
if(pid==0)
{
value+=15;
}
else if(pid>0)
{
wait(NULL);
printf("Parent value:=%d",value);
exit(0);
}
return 0;
}

What is the output of this program? Can the value of parent be 20 or the child will av its own copy of the variable "Value"

问题回答

父母自己将拥有变数“价值”的复印件,因此产出为5

你是否试图执行上述法律?





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